Connection tube for a vacuum cleaner



FIG. 1 is an end perspective view of a connection tube for a vacuum cleaner showing my new design;

FIG. 2 is another end perspective view thereof;

FIG. 3 is a side elevational view thereof; and

FIG. 4 is a side elevational view thereof, of the opposite side of FIG. 3. 

The ornamental design for a connection tube for a vacuum cleaner, as shown and described. 